philosopher and mathematician ( 1646 -1716), 581 -596, 706 ; and
calculus, 536 , 829 ; and ethics, 644 ; and Germany, 719 ; and God, 417 ,
566 , 691 ; and infinite number, 830 ; influence of, 642 ; and Kant, 704 ;
and knowledge, 610 ; and Locke, 609 , 641 ; method of, 643 ; and
plenum, 70 ; and principle of individuation, 467 -468; and Spinoza, 569 ;
and subjectivism, 493 , 701 ; and substance, 591 ; quoted, 586 -587, 592
-594
Leipzig, 581
leisure, 106 , 786
Lenin, Nikolai ( Vladimir Ilich Ulyanov), Russian Communist leader
( 18701924), 820
Leo I (the Great), St., Pope (reigned 440 -461), 367 , 369
Leo III, St., Pope (reigned 795 -816), 392
Leo IX (Bruno of Toul), St., Pope (reigned 10491054), 412
Leo X (Giovanni dei Medici), Pope (reigned 1513-1521), 498 , 499 , 506
Leo XIII, Pope (reigned 1878-1903), 452
Leo III (the Isaurian), Roman Emperor in the East ( 680 ?- 741 ), 389
Leonardo. See Vinci, Leonardo da Leontia, wife of Phocas, Roman
Emperor in the East, 386
Leopardi, Count Giacomo, Italian poet ( 17981837), 229
Lethe, 19
Letter of Aristeas, 315 â€
Letters on Toleration ( Locke), 633
Lettres philosophiques ( Voltaire), 605
Leucippus, Greek atomist philosopher (fl. ca. 440 B.C.), 64 , 65 , 66 , 68 ,
69 *, 70 , 206 , 243 ; quoted, 66
Leuctra, 99
Levant, 750
Leviathan ( Hobbes), 547 , 548 -549, 552
Leviticus, quoted, 312
Leyden, University of, 559
liberal culture, 492